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Round|Lab Grown|IGI

1.00ct D SI2 Round Lab Grown Diamond

VG • D/SI2 • IGI LG472170744

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472170744

Diamond specifications and retailer prices

From $1,232 NZD
$692 USD
As of October 29, 2026
Save $1,093 NZD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,520 NZD at Friendly Diamonds · As of October 28, 2026
View at Friendly Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG472170744 or 472170744. Listed at 11 retailers as of October 28, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472170744
Dimensions6.32 × 6.25 × 3.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeVery Small
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.32 mm6.25 mm1.00 ctD / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472170744
Side View
Table 57.0%Crown 36.3°Girdle: STK-THKPavilion 39.9°Culet: Very SmallDepth 62.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,520 NZD|Low: $983 NZD|High: $5,680 NZD|Avg: $2,126 NZD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$1,232 NZD
Retailer 9$1,341 NZD
Retailer 8$1,378 NZD
Retailer 5$1,389 NZD
Retailer 6$1,430 NZD
Retailer 10$2,071 NZD
Retailer 2$2,282 NZD
Retailer 7$2,325 NZD
Friendly Diamonds$3,520 NZD
Retailer 3$5,642 NZD

39 data points across 10 retailers

11 retailers$1,232 NZD to $2,325 NZD

B
Cheapest Retailer
-
$1,232 NZD
$692 USD
B
Retailer 2
-
$1,341 NZD
$753 USD
View
B
Retailer 3
-
$1,378 NZD
$774 USD
View
Final sale: no returns
B
Retailer 4
-
$1,389 NZD
$780 USD
View
Retailer 5
-
$1,430 NZD
$803 USD
View
Price last confirmed 13 days ago
B
Retailer 6
-
$1,430 NZD
$803 USD
View
B
Retailer 7
-
$2,282 NZD
£1,009 GBP
View
B
Retailer 8
-
$2,325 NZD
$1,306 USD
View
Most Expensive
Friendly Diamonds
1590708 · Oct 28
$3,520 NZD
$1,977 USD
View
Price under review
8 more retailers have this diamond
Prices start from $1,232 NZDSave up to $1,093 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.00ct Round
$1,232 NZD